Handle exceptions properly when sending message to client. We were not handling the
 exception so when it occured, the thread stopped and we can't send messages from
 server to client anymore.

update state on FreeswitchConferenceActor when FreeSWITCH automatically stop recording a meeting, so we avoid the condition in which the wav files aren't generated

Updated RequestBreakoutJoinURL to return two join urls, the first with redirection enable and the second without redirection.

  Need to track user connections to prevent removing the user when the defuncted connection gets
  cleaned up by Red5.